Download How do air masses affect weather?

Unit 5 Lesson 3 What Influences Weather?
How does the water cycle
affect weather?
• __________ is the short-term state of
the atmosphere.
• The _________ _________ is the
continuous movement of water among
the atmosphere, __________, oceans,
and ___________ things.
• ___________, ___________, and
______________ in the water cycle
are also parts of weather.
How do air masses affect
weather?
• An _____ ______ is a large volume
of air in which ___________ and
____________ content are nearly the
same throughout.
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Unit 5 Lesson 3 What Influences Weather?
• An air mass forms when air remains
over a region for many days and takes
on the ___________ and __________
of the land below it.
Where do fronts form?
• A boundary, called a ________, forms
between air masses with differing
___________.
• Fronts cause a _________ in weather
as they pass.
• The ___________ and __________
content of the air masses that meet
and their movement relative to each
other determine the type of front
formed
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Unit 5 Lesson 3 What Influences Weather?
• _______ _______ form as a cold air
mass pushes an existing warm air
mass up.
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Unit 5 Lesson 3 What Influences Weather?
• _______ ________ form as a warm
air mass slides up over a retreating
cold air mass.
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Unit 5 Lesson 3 What Influences Weather?
• ___________ fronts form when a cold
air mass and a warm air mass remain
in one place.
What are pressure systems and
how do they interact?
• Areas of different ____ ________
cause changes in the weather.
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Unit 5 Lesson 3 What Influences Weather?
• In a ______ ________ _______, air
slowly sinks down and spreads
outward.
• In a _______ ________ _______,
air rises and ________.
• A high-pressure system can form a
low-pressure system.
How do different pressure
systems affect us?
• Sinking air in a high-pressure system
generally produces ______ skies and
_______ air or gentle breezes.
• Rising air in a low-pressure system
generally produces _______ and
_______.
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Unit 5 Lesson 3 What Influences Weather?
How do global wind patterns
affect local weather?
• Winds are caused by changes in
________, which is due to ________
heating.
• Wind speed and direction are affected
by _______ ________. Globally,
there is an overall movement of
surface air from the _______ toward
the ___________.
• _________ bring different air masses
to a region, which affects the
___________.
How do jet streams affect
weather?
• _______ __________ are longdistance winds that travel above
_______ winds for thousands of
____________.
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Unit 5 Lesson 3 What Influences Weather?
• A jet stream affects ___________ and
______________ patterns.
• The polar jet stream travels further
________ in the winter and further
________ in the summer.
• Each ___________ usually has ____
main jet streams.
How do ocean currents
influence weather?
• Surface currents in the ocean are
caused by wind.
• Energy is transferred to the
atmosphere by the movement of
_____ and ______ currents.
• Hurricanes and ________ are affected
by ocean currents.
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Unit 5 Lesson 3 What Influences Weather?
• As currents flow, they warm or cool
the atmosphere above, affecting local
_____________.
• Coastal areas may have ________
summer temperatures than inland
areas because of cold-water currents.
• Coastal areas may have ________
winter temperatures than inland areas
because of warm-water currents.
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